removed .clear() alias

src/publicapi.js

diff --git a/src/publicapi.js b/src/publicapi.js
index 35cc936..615b0aa 100644
--- a/src/publicapi.js
+++ b/src/publicapi.js
@@ -160,7 +160,7 @@
       if (this.__controller.blurred) this.__controller.cursor.hide().parent.blur();
       return this;
     };
-    _.empty = _.clear = function() {
+    _.empty = function() {
       this.select().__controller.backspace();
       return this;
     };